C++ LLAvatarJoint::getLOD方法代码示例

BOOL LLAvatarJoint::updateLOD(F32 pixel_area, BOOL activate)
{
	BOOL lod_changed = FALSE;
	BOOL found_lod = FALSE;

	for (child_list_t::iterator iter = mChildren.begin();
		 iter != mChildren.end(); ++iter)
	{
		LLAvatarJoint* joint = dynamic_cast<LLAvatarJoint*>(*iter);
		F32 jointLOD = joint->getLOD();
		
		if (found_lod || jointLOD == DEFAULT_AVATAR_JOINT_LOD)
		{
			// we've already found a joint to enable, so enable the rest as alternatives
			lod_changed |= joint->updateLOD(pixel_area, TRUE);
		}
		else
		{
			if (pixel_area >= jointLOD || sDisableLOD)
			{
				lod_changed |= joint->updateLOD(pixel_area, TRUE);
				found_lod = TRUE;
			}
			else
			{
				lod_changed |= joint->updateLOD(pixel_area, FALSE);
			}
		}
	}
	return lod_changed;
}

//--------------------------------------------------------------------
// render()
//--------------------------------------------------------------------
U32 LLViewerJoint::render( F32 pixelArea, BOOL first_pass, BOOL is_dummy )
{
	stop_glerror();

	U32 triangle_count = 0;

	//----------------------------------------------------------------
	// ignore invisible objects
	//----------------------------------------------------------------
	if ( mValid )
	{


		//----------------------------------------------------------------
		// if object is transparent, defer it, otherwise
		// give the joint subclass a chance to draw itself
		//----------------------------------------------------------------
		if ( is_dummy )
		{
			triangle_count += drawShape( pixelArea, first_pass, is_dummy );
		}
		else if (LLPipeline::sShadowRender)
		{
			triangle_count += drawShape(pixelArea, first_pass, is_dummy );
		}
		else if ( isTransparent() && !LLPipeline::sReflectionRender)
		{
			// Hair and Skirt
			if ((pixelArea > MIN_PIXEL_AREA_3PASS_HAIR))
			{
				// render all three passes
				LLGLDisable cull(GL_CULL_FACE);
				// first pass renders without writing to the z buffer
				{
					LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
					triangle_count += drawShape( pixelArea, first_pass, is_dummy );
				}
				// second pass writes to z buffer only
				gGL.setColorMask(false, false);
				{
					triangle_count += drawShape( pixelArea, FALSE, is_dummy  );
				}
				// third past respects z buffer and writes color
				gGL.setColorMask(true, false);
				{
					LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
					triangle_count += drawShape( pixelArea, FALSE, is_dummy  );
				}
			}
			else
			{
				// Render Inside (no Z buffer write)
				glCullFace(GL_FRONT);
				{
					LLGLDepthTest gls_depth(GL_TRUE, GL_FALSE);
					triangle_count += drawShape( pixelArea, first_pass, is_dummy  );
				}
				// Render Outside (write to the Z buffer)
				glCullFace(GL_BACK);
				{
					triangle_count += drawShape( pixelArea, FALSE, is_dummy  );
				}
			}
		}
		else
		{
			// set up render state
			triangle_count += drawShape( pixelArea, first_pass );
		}
	}

	//----------------------------------------------------------------
	// render children
	//----------------------------------------------------------------
	for (child_list_t::iterator iter = mChildren.begin();
		 iter != mChildren.end(); ++iter)
	{
		LLAvatarJoint* joint = dynamic_cast<LLAvatarJoint*>(*iter);
		if (!joint)
			continue;
		F32 jointLOD = joint->getLOD();
		if (pixelArea >= jointLOD || sDisableLOD)
		{
			triangle_count += joint->render( pixelArea, TRUE, is_dummy );

			if (jointLOD != DEFAULT_AVATAR_JOINT_LOD)
			{
				break;
			}
		}
	}

	return triangle_count;
}